Loudspeaker box



FIG. 1 is a top, front right-side perspective view of a loudspeaker box showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top, front left-side perspective view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a rear view thereof with the loudspeaker box in another orientation. 

The ornamental design for a loudspeaker box, as shown and described. 